How to build a simple diy daybed with storage underneath that doubles as seating. Fits standard twin mattress. Free plans by ANA-WHITE.com
9 - 2x4 @ 8 feet or stud length
1 - 1x2 @ 4 feet
2-1/2" pocket hole screws
2-1/2" or longer (depending on wall material) screws for attaching daybed to walls
1-1/4" brad nails
3 - 2x4 @ 37-3/4"
3 - 2x4 @ 10-1/2"
3 - 1x2 @ 14"
7 - 2x4 @ 75"
Build three legs for a 75" wide daybed. If you want to span a longer distance, you'll need a leg about every 3 feet to support the 2x4 slats.
Attach back cleat to studs in wall with 2-1/2" wood screws. Then attach legs to the back cleat with pocket hole screws. One leg must be attached to studs in the wall, preferably both outer legs. We had a storage box built in in the corner, so attached the second outer leg to the storage box. This keeps the daybed from racking.
Attach slats to legs with 2-1/2" screws.